<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title></title>
  </head>
  <body>
    <form class="" action=".php" method="post">
    账号<input type="" name="" value=""/><br/>
    密码<input type="password" name="" value="">
    <button type="submit" name="button">登录a</button>
    </form>
  </body>
</html>
